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  1. #1
    dual a/c doesent mean 2 compressors.... 2 evaporators and 2 condensers lang!

    locally, dapat buhay sa likos pag buhay a/c mo sa harap, to prevent evaporator freeze-up.

    pero katulad nung sa liteace ko, dual a/c+cold/hot box w/ice maker, at may mag solenoid valves on the systems, ok lang kahit anu buksan, kahit patay yung iba...

    pero eto ang general rule dya->regardless kung alin fan buksan mo, parehong matakaw yan sa fuel than walang a/c.. maslalo kung sa mainit na tanghali..

    ang role lang ng thermostat is papatayin nya yung compressor kung naatained na yung preset coldness.. most local dual a/c system 1 lang ang talagang thermostat nyan, mostly sa front. pero dapat kung buhay ang a/co sa harap, dapat buhayin mo ang fan sa likod para nga di mag-freeze up ang evaporator..

  2. Join Date
    Aug 2005
    Posts
    2,063
    #2
    akala ko dalawa ang compressor . hehehe. tama c yummy dapat fan on sa likod para sakto ang ginaw and hindi mag ice sa lamig

  3. Join Date
    May 2004
    Posts
    3,221
    #3
    always on the a/c at the back kahit mag-isa ka lang. di raw maganda na wlang dumadaang hangin sa cooling coil while naka on ang AC. hth

  4. Join Date
    Dec 2005
    Posts
    137
    #4
    Quote Originally Posted by niwde11 View Post
    always on the a/c at the back kahit mag-isa ka lang. di raw maganda na wlang dumadaang hangin sa cooling coil while naka on ang AC. hth
    on a dual a/c system, most if not all brands are equipped with a solenoid valve that shut-off the refrigerant flow on the rear evaporator/cooling coil if you dont like to use it... it doesnt mean that if the a/c is on, the flow on the rear is continuous.... no, if rear is switch off, solenoid valve is shut... thus, no flow....

    if solenoid valve is removed, that's another story.....

  5. Join Date
    Jan 2006
    Posts
    2,105
    #5
    kung kulang din sa freon yung vehicle, mas malakas din ang gas consumption...

  6. Join Date
    Apr 2007
    Posts
    82
    #6
    Quote Originally Posted by alwayz_yummy View Post
    dual a/c doesent mean 2 compressors.... 2 evaporators and 2 condensers lang!

    locally, dapat buhay sa likos pag buhay a/c mo sa harap, to prevent evaporator freeze-up.

    pero katulad nung sa liteace ko, dual a/c+cold/hot box w/ice maker, at may mag solenoid valves on the systems, ok lang kahit anu buksan, kahit patay yung iba...

    pero eto ang general rule dya->regardless kung alin fan buksan mo, parehong matakaw yan sa fuel than walang a/c.. maslalo kung sa mainit na tanghali..

    ang role lang ng thermostat is papatayin nya yung compressor kung naatained na yung preset coldness.. most local dual a/c system 1 lang ang talagang thermostat nyan, mostly sa front. pero dapat kung buhay ang a/co sa harap, dapat buhayin mo ang fan sa likod para nga di mag-freeze up ang evaporator..

    car is an avanza. i guess same principle sya ng dual aircon as in other aAUVs.

    ano po mangyari pag mag freeze up Evap?

  7. Join Date
    Oct 2002
    Posts
    5,235
    #7
    Difference is negligeable. Load is more on the alternator, pero like I've said negligeable yun dagdag na consumption.

  8. #8
    pag nag froze yung likod, e di kung bubuhayin di agad magkakahangin sa likod. or kung di mo talaga binuhay, ung ice formed sa a/c evaporator matutunaw magiging water--water is a breeding ground of bacteria.

    kaya dapat bago mo patayin a/c system mo, dapat push mo muna yung compressor switch to turn it off, then just let the fan thaw the evaporator para di magkaroon ng stagnant water sa evaporator...kaya minsan may amoy pag binuksan mo ang a/c,e...lalo na kung barado ang drain...

  9. Join Date
    Dec 2006
    Posts
    800
    #9
    tanung ko lang po, bakit ung aircon ng sa min, mb100, yung a/c sa harap mas malamig yung hangin kesa sa a/c sa likod?

  10. #10
    mas maiksi ang vent na tatakbuhan ng hangin sa harap kaysa sa likod...

  11. Join Date
    Jan 2006
    Posts
    2,105
    #11
    kung faulty yung expansion valve sa likod, maarin din humina lalo ang lamig dun sa likod...

  12. Join Date
    Aug 2007
    Posts
    675
    #12
    Quote Originally Posted by funkngruvn View Post
    tanung ko lang po, bakit ung aircon ng sa min, mb100, yung a/c sa harap mas malamig yung hangin kesa sa a/c sa likod?
    Does the ceiling mounted blower make a difference? Kapag tapat sa araw masmainit ceiling and the rear aircon blower is mounted on the ceiling, kaya baka masumiinit yung hangin bago ito lumabas.

    Also, masmaraming air outlets yung aircon sa likod and so the blower's strength is divided per outlet kaya masmahina yung labas ng hangin thus less ang cooling as compared to the front which has only about 4 air outlets.

dual aircon question